Printing-machine.



s. BROWN.

PRINTING MACHINE.

APPLICATION FILED JU IJ 9, 1906 PATENTED JUNE 30, 1908.

s SHEETS-SHEET 1 lvwenfoz @MM No. 891,980. PATENTED JUNE 30,1908.

S. BROWN.

PRINTING MACHINE.

APPLICATION FILED JULY 9, 190a.

. Q b g 3 SHEETS-SHEET 2.

3 "neuron M M dawn PATBNTED JUNE so, 1968. s. BROWN. PRINTING MACHINE.

APPLIUATION FILED JULY 0, 1906.

3 8HBET8-- BHEET 3.

Wi ha ease:

warren STATES PATENT OFFICE.

. SUMMERS BROWN, OF NEW YORK, N; Y.

rnmrme-mncmnn;

Specification of Letters Ifatent.

Patented J'une 30, 1908.

Applicatlon and July e, 1906. emu reassess.

To all may concern:

Be it known that I, SUMMERS BROWN, a sub'ect of the King of Great Britain, residin 'at ew York, in-the. county of New Yor i on my LettersPatent tober 18th, 1904, in which the slotted type and State of New-York, have invented cer-.

tain new and useful Improvements in Printing-Machines; and I do hereby declare the fo scription of the invention, such as will enable othe'isfskllled' in the art to which it appertaind-"to. make and use the same.

This inventionis in art an improvement 0. 772,337, dated Ocare held to the c linder b .a series of removjable longitudina rods" he said invention 1 consists'chiefly in' certain features for improving the and .especia 2O I p first position a er printing and providing for general operation of the machine, ly in means for automatically returning the rintingribbon to about its presenting at'will fresh" parts of the ribbon or use so that the whole ribbon may be equally worn in its different sections; also 'j particularly set forth and claimed. I

, In'the accom anying drawings, Figure 1 tron.

in certain other (1 vices hereinafter more represents a si e elevation of "a machine i embodying my invention; Fig; 2 represents alan view of the same; Fig. 3 re resents an 0 'ar ed cross-section of a part 0 the cylinder ta en close to the inner edge of one of the rubber bands 0 and looking outward; Fig. 4

represents an enlarged detail side elevation of a part of one of the bars D, the proximate parts being shown in cross-section; Fig. 5 represents an enlarged detail side elevation of one of the gud'geons of the printing cylinde'r,. the sprocket wheel fastened thereon being shown invertical'section; Figi 6 represents a. side elevation of-a modified form of type having a holeinstead of the notch for t 0 rod;

Fig. 7- represents an enlarged detail side eleva-, .tion of a part of one of the rods E and the row of notched t p e into which it fits, some.

proximate'parts emg shown in vertical sec- Adesi. ates the frame of the machine; B,

wthecy der, having raised annular endflanges andlongitudinal rooves b to receive thetypa-these grooves eing like those of :the patent aforesaid, except that the are shallower; {f In juntaposition to the sai end flanges, the'terminal-parts of the cylinder are lowing'to be a full, clear, and'exact deenlar ed in diameter, providing an annular face 5, and narrower annular faces B of less diameter are next thereto on the inner side.

C designates a pair of rubber bands fitting on the annular faces B and roviding the friction surface for feeding t e pa er and equalizing the pressure thereon. T ey also receive under them the projectingintegral lugs or end pieces d of a removab e bar D, which extends longitudinally of the said cylinder and is shifted around the same at the type as the type-setting proceeds, thereby a ways presenting a space or slot for the insertion of the next line of type.

E designates the longitudinal removable type F and fitting into the notches f of the latter or the holes of the modified type shown in Fig. 6. I the are not held by the pressure of the aforeent, but their outer ends ass through holes inner ends fit into sockets e of the corresponding raised. part of the other end ofthe cylinder. The other end of each rod E is notched, for convenience in drawing it out, and these notches may also be used to receive ke s or wed es for locking said rods in place.

y the a ove described construction and arrangement of the rods and cylinder, the

tached by the pressure ,0 the rubber bands.

G d'eslgnates the table over which the sheets of paper H are fed under the cylinder and between it and the platen roller I.

*drawn upward by a sprin J after each depression y the paper-fee -roll K. The action of th s I iii the present instance,

distance of. one groove from the last line of rods, corresponding in number to the linesof sai rubber bands as in the case of said pa't-' e in the raised part of t e cylinder which, forms theouter, annular face B, and their said rods are held more securelyand are spaced more accurately a art than when at- This'table is hinged at one point at h, and is i wheel P, meshing with abevel wheel P on the lower end of the said s'brewrod, to turn the same. The said pawl and ratchet are constructed andarranged to feed the said nut or stop upward at each stroke a distance corresponding approximately to the thickness of a sheet of paper; so that each depres sion of said table provides for adjusting the surface to be printed or to the position which it should occupy with respect to the printing cylinder for the next impress. The said paper-feed-roller is mounted on a bifurcated arm K of a shaft K provided with a sprocket wheel or equivalent gear Q connected by an graduated disk It is fast on shaft K between the two parallel plates of arm K; and is engaged peripherally which passes through the bent outer end of said arm, to lock the said arm in any desired position of pivotal adjustment, thereby regulating the position of the paper feed roller K with regard to the point or line of the paper which it will impress. As the shaft K and the printing cylinder turn equally and simul taneously, it follows that such adjustment of feed roll and of the part of the sheet at which it begins to operate must correspondingly adjust the printing, shifting the lines of print forward or backward:

S designates the printing ribbon, which passes between the platen roller and the printing cylinder constituting the two memers-of a printing couple, but not around the latter. lts ends are attached to springrollers or spring-barrels T and U of any approved construction normally balancing each other? hen the type on the printing roller and platen roller grip the paper and ribbon between them in the act of impressing the former, the pull on said ribbon caused by the .rotation of the said cylinder puts extra tension on the spring 6 of the upper and front spring roller T which-is thereby enabled to overcome. the spring u of the correspondin roller U, the latter occupying a rearward an lower position. then the last line of type set in the cylinder turns beyond the gripping point, "the ribbon is freed and drawn back by roller T to about its first position. There is always shch a last line, the cylinder being designedly left with an ungrooved part, which of course bears no type.

The platen or impression roller I is journrled at the ends-in. pivoted supports or supportinglinks I and one of its gudgeons i is extended to receive, beyond the proximate by a clamping screw R,

support, a lever I pivoted near its middle thereon and having its forward end arranged to bear against the inclined face V of the upper art of a spring attached to frame A at its ower end, said spring being adjusted in position by .a screw V entering a screwthreaded socket V of said frame. On raising the platen roller into operative position and actuating one end of said lever the forward end'of the latter will ride down the inclined end of said spring and catch below the said incline, the said lever being then-in line with its pivot and the said up or end of the spring and holding the said p aten roller as thus placed.

The cylinder B is driven by convenient gearing, for example a large gear wheel WV which meshes with.a smaller wheel W on a shaft WW operated in any'convenient way. This gear wheel may be engaged at will by a locking stud W that passes inward through a part of the frame A. In this way the cylinder may be conveniently locked at any time.

X designates a guide frame bearing for the pile of paper sheets as shown in my Patent #825186, dated July 3d, 1906, and movable therewith up and down on studs X on the tilting feed table. The latter also bears ad-. justable guide plates X for the sides of the paper.- This table rests on a box Y, which affords means of attachment for some of the -minor parts hereinafter referred to and may extra parts and convenient also contain loose tools.

The operation is as follows: Thellin e oftype having been filled side by side-into the space or slot formed by the removable bar D the rod E is passed lengthwise in through the hole e and through the alined notches, holes, grooves or other openings of said type and into the socket e. The said bar is then shifted to the next groove and the type Setting and 8 611 are repeated till the cyl-j' Q 110 The platen roller is then lifted and locked in ,7

inder has receive its-full supply of type.

0 erative position. The cylinder is rotated, t e sheet thereby printed, and the sto for the paper-feeding table simultaneously fted to compensate for the withdrawal of the sheet. der turns beyond the sheet falls .off the table an -paper-are lifted, as described, the thickness; of one sheet of paper, and the cycle of operations is repeated.

The twospring rollers T and U may beraised at Wlll out oftheir bearings and turnedto wind the ribbon from one to the The ribbon is retracted as the cylin gripping point; the

other, before replacing them. By thus winduse the entire ribbon ,to the utmost advanta e'.

IAs the ribbon does not pass around the cylinder, I am enabled to have free and convenient access to the periphery'of the latter at all points not covered by said ribbon and to the type and rods on said cylinder. As the cylinder may easily be turned to present any part of it up ermost, I have access in this Way to all of t ie type, and the correction of any error is made easy.

The nut L is locked against turning by a chain and pin L or in any other convenient way I do not claim in this application either the means for type-holding herein shown and described or the paper-supporting table and cooperating feeding devices. These are covere respectively by two a plications Nos. 367681 and 367682 filed as ivisions thereof.

Having thus described my invention, What I claim as new and desire to secure by Letters Patent is:

1. In combination with a printing cylinder its .platen roller, a pair of spring rollers; a printing ribbon advanced by the grip of said roller and the type of said cylinder and having its ends wound on said spring rollers, in order that said ribbon may be automatically withdrawn to about its first position after said grip ceases.

2. In combination With a printing roller and its platen roller, a ribbon passing between them, and removable spring rollers, to which the ends areattached, the latter ermitting the ribbon to be wound thereon f dr shiftin it from one to the other more or less and thereby presentin a new part of the ribbon for use substantially as set forth.

3. In combination with the platen roller of la printing machine, a pair of sup orting s on which the journals of said r0 ler are mounted, a fixed part to which said links are ivoted at their lower ends, a lever distinct rom said links but engaging one of said jour-" nals to lift said roller, :1. fixed fulcrum for said lever, a spring having an inclined face for frictional engagement with the end' of-said lever to hold said roller in its raised position and means for adjusting the tension of said spring as set fort -In testimony whereof, I have signed my name to this specification in the presence of twosubscribing witnesses.

SUMMERS BROWN. Witnesses 0. LE R. OHIPMAN. J. A. Panama. 

